138 DESTRUCTIVE INSECTS OF VICTORIA: 



been found no less than ten pupa3 in the one small twig, 

 and thus it happens that this borer beetle is kept within 

 reasonable bounds. There are several others but smaller 

 Hymenoptera which attack this beetle when in the larvae 

 and pupse state, many of the latter having been reared 

 from the branches collected. 



There is a danger, as we in this colony have previously 

 experienced, of this class of beetle being introduced here 

 in the larval form by means of timber, as most longicorns, 

 unlike many of the moths, appear to be perfectly at home 

 in logs, no matter how dry the wood may be, and it is by 

 these agencies that the little longicorn beetles which some 

 time since destroyed the wooden hoops on the kegs of 

 powder in our powder magazine have been introduced 

 from the continent of Europe. Let us hope that our fruit 

 trees will escape attack from this class of insect, but in 

 any case, to quote an old proverb, to be forewarned is to 

 be forearmed. In the best-regulated American institu- 

 tions figures of at least all the worst of the insects known 

 to be destructive to vegetation are in the splendid publi- 

 cations which are from time to time issued by the 

 Americans fully dealt with, these publications being in 

 great demand everywhere. 



